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Karner J, Roth E, Stehle P, Albers S, F�rst P. Influence of Glutamine-Containing Dipeptides on Muscle Amino Acid Metabolism. Nutr Clin Pract 2015. [DOI: 10.1159/000416949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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Seelig HP, Roth E, Roth E, Grella H. Effects of Mesangial Antiserum on Glomerular Structures in Rats. CONTRIBUTIONS TO NEPHROLOGY 2015. [DOI: 10.1159/000399237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Schnitzer TJ, Harvey RL, Hillary Nack S, Supanwanid P, Maskala-Streff L, Roth E. Bone Mineral Density in Patients With Stroke: Relationship With Motor Impairment and Functional Mobility. Top Stroke Rehabil 2014; 19:436-43. [DOI: 10.1310/tsr1905-436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Roth E, Gunkel-Grillon P, Joly L, Thomas X, Decarpenterie T, Mappe-Fogaing I, Laporte-Magoni C, Dumelié N, Durry G. Impact of raw pig slurry and pig farming practices on physicochemical parameters and on atmospheric N2O and CH 4 emissions of tropical soils, Uvéa Island (South Pacific). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:10022-10035. [PMID: 24862486 DOI: 10.1007/s11356-014-3048-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 05/14/2014] [Indexed: 06/03/2023]
Abstract
Emissions of CH4 and N2O related to private pig farming under a tropical climate in Uvéa Island were studied in this paper. Physicochemical soil parameters such as nitrate, nitrite, ammonium, Kjeldahl nitrogen, total organic carbon, pH and moisture were measured. Gaseous soil emissions as well as physicochemical parameters were compared in two private pig farming strategies encountered on this island on two different soils (calcareous and ferralitic) in order to determine the best pig farming management: in small concrete pens or in large land pens. Ammonium levels were higher in control areas while nitrate and nitrite levels were higher in soils with pig slurry inputs, indicating that nitrification was the predominant process related to N2O emissions. Nitrate contents in soils near concrete pens were important (≥ 55 μg N/g) and can thus be a threat for the groundwater. For both pig farming strategies, N2O and CH4 fluxes can reach high levels up to 1 mg N/m(2)/h and 1 mg C/m(2)/h, respectively. CH4 emissions near concrete pens were very high (≥ 10.4 mg C/m(2)/h). Former land pens converted into agricultural land recover low N2O emission rates (≤ 0.03 mg N/m(2)/h), and methane uptake dominates. N2O emissions were related to nitrate content whereas CH4 emissions were found to be moisture dependent. As a result relating to the physicochemical parameters as well as to the gaseous emissions, we demonstrate that pig farming in large land pens is the best strategy for sustainable family pig breeding in Uvéa Islands and therefore in similar small tropical islands.
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Roth E, Sponberg S, Cowan NJ. A comparative approach to closed-loop computation. Curr Opin Neurobiol 2014; 25:54-62. [DOI: 10.1016/j.conb.2013.11.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/02/2013] [Accepted: 11/18/2013] [Indexed: 01/08/2023]
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El Masri A, Al Rashidi M, Laversin H, Chakir A, Roth E. A mechanistic and kinetic study of the heterogeneous degradation of chlorpyrifos and chlorpyrifos oxon under the influence of atmospheric oxidants: ozone and OH-radicals. RSC Adv 2014. [DOI: 10.1039/c4ra03511a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Chlorpyrifos in the heterogeneous phase of the atmosphere is quickly removed by reaction with OH radicals (∼2 day) whereas its degradation product, chlorpyrifos oxon is more persistent.
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Blattmann C, Thiemann M, Stenzinger A, Christmann A, Roth E, Ehemann V, Debus J, Kulozik AE, Weichert W, Huber PE, Oertel S, Abdollahi A. Radiosensitization by histone deacetylase inhibition in an osteosarcoma mouse model. Strahlenther Onkol 2013; 189:957-66. [PMID: 23801068 DOI: 10.1007/s00066-013-0372-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 04/29/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND Osteosarcomas (OS) are highly malignant and radioresistant tumors. Histone deacetylase inhibitors (HDACi) constitute a novel class of anticancer agents. We sought to investigate the effect of combined treatment with suberoylanilide hydroxamic acid (SAHA) and radiotherapy in OS in vivo. METHODS Clonogenic survival of human OS cell lines as well as tumor growth delay of OS xenografts were tested after treatment with either vehicle, radiotherapy (XRT), SAHA, or XRT and SAHA. Tumor proliferation, necrosis, microvascular density, apoptosis, and p53/p21 were monitored by immunohistochemistry. The CD95 pathway was performed by flow cytometry, caspase (3/7/8) activity measurements, and functional inhibition of CD95 death signaling. RESULTS Combined treatment with SAHA and XRT markedly reduced the surviving fraction of OS cells as compared to XRT alone. Likewise, dual therapy significantly inhibited OS tumor growth in vivo as compared to XRT alone, reflected by reduced tumor proliferation, impaired angiogenesis, and increased apoptosis. Addition of HDACi to XRT led to elevated p53, p21, CD95, and CD95L expression. Inhibition of CD95 signaling reduced HDACi- and XRT-induced apoptosis. CONCLUSION Our data show that HDACi increases the radiosensitivity of osteosarcoma cells at least in part via ligand-induced apoptosis. HDACi thus emerge as potentially useful treatment components of OS.
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Ngugi EN, Roth E, Mastin T, Nderitu MG, Yasmin S. Female sex workers in Africa: epidemiology overview, data gaps, ways forward. SAHARA J 2013; 9:148-53. [PMID: 23237069 DOI: 10.1080/17290376.2012.743825] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Wu JS, Kim AM, Bleher R, Myers BD, Marvin RG, Inada H, Nakamura K, Zhang XF, Roth E, Li SY, Woodruff TK, O'Halloran TV, Dravid VP. Imaging and elemental mapping of biological specimens with a dual-EDS dedicated scanning transmission electron microscope. Ultramicroscopy 2013; 128:24-31. [PMID: 23500508 DOI: 10.1016/j.ultramic.2013.01.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 01/22/2013] [Accepted: 01/24/2013] [Indexed: 11/30/2022]
Abstract
A dedicated analytical scanning transmission electron microscope (STEM) with dual energy dispersive spectroscopy (EDS) detectors has been designed for complementary high performance imaging as well as high sensitivity elemental analysis and mapping of biological structures. The performance of this new design, based on a Hitachi HD-2300A model, was evaluated using a variety of biological specimens. With three imaging detectors, both the surface and internal structure of cells can be examined simultaneously. The whole-cell elemental mapping, especially of heavier metal species that have low cross-section for electron energy loss spectroscopy (EELS), can be faithfully obtained. Optimization of STEM imaging conditions is applied to thick sections as well as thin sections of biological cells under low-dose conditions at room and cryogenic temperatures. Such multimodal capabilities applied to soft/biological structures usher a new era for analytical studies in biological systems.
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Mappé I, Joly L, Durry G, Thomas X, Decarpenterie T, Cousin J, Dumelie N, Roth E, Chakir A, Grillon PG. A Quantum Cascade Laser Absorption Spectrometer devoted to the in situ measurement of atmospheric N2O and CH4 emission fluxes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:023103. [PMID: 23464191 DOI: 10.1063/1.4790376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper describes a Quantum Cascade Laser Absorption Spectrometer, called "QCLAS" that was developed to monitor in situ greenhouse gases like N2O and CH4, at high temporal resolution and with a high accuracy. The design of the laser sensor is reported as well as its performances in terms of precision error and field deployment capabilities. Finally, to demonstrate the efficiency and the robustness of QCLAS and its suitability for gas emission monitoring and for the determination of fluxes, we report the results from a field campaign, that took place in the Wallis and Futuna Islands in 2011, to investigate the impact of environmental intensive pig farming.
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Facy L, Merlivat L, Nief G, Roth E. The study of the formation of a hailstone by means of isotopic analysis. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jz068i013p03841] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Facy L, Merlivat L, Nief G, Roth E. Reply [to “Letters ‘On the study of the formation of hailstones by means of isotopic analysis’ by I. H. Bailey and W. C. Macklin”]. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jz070i002p00498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ravoire J, Lorius C, Robert J, Roth E. Tritium content in a firn core from Antarctica. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jc075i012p02331] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hrybyk G, Rubinstein R, Eckert K, Frankowski A, Keimig L, Nemec M, Peeples A, Roth E, Doyle P. The Dark Side:Stigma in purpose-built senior environments. ACTA ACUST UNITED AC 2012; 26:275-289. [PMID: 25214701 DOI: 10.1080/02763893.2012.651384] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This paper focuses on stigma in collective living environments for older adults, specifically multi-level campuses. We contrast two design profiles, a purpose-built campus which opened in 1997, and an older setting that grew by accretion over decades. Purpose-built housing is used as originally intended, designed, and constructed; housing built by accretion has been modified over time to meet changing needs and uses. The separation by care levels in both sites is reflected in their cultures as residents and staff relate to physical levels of care through a vocabulary of fear and stigma. Residents of the independent living building on the purpose-built campus refer to the assisted living building, accessed only through a second floor link, as "the other side" or "the dark side." In this setting we observe stigma assigned to a place in the built environment. By contrast, in the older setting built by accretion over the last century, levels of care feature a less-structured clustering of independent living and assisted living, and common areas were shared by residents from multiple care levels. We have observed less stigma associated with levels of care in this older building. Grounding our analysis in data drawn from ongoing ethnographic research, we focus on the built environment as it relates to stigma in the social environment. The paper concludes with a discussion of the importance and pervasiveness of stigma in senior environments.
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Roth E, Bleyer V. Photoemission der Netzhaut beim Menschen. Klin Monbl Augenheilkd 2011. [DOI: 10.1055/s-0031-1297302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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O'Brien N, Palmer AK, Zhang W, Michelow W, Shen A, Roth E, Rhodes CL, Montaner JSG, Hogg RS. P5-S6.22 Social-structural factors associated with supportive service use in a cohort of HIV-positive individuals on ARV therapy in British Columbia, Canada. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Roth E, Bleyer V. Photoemissionen des menschlichen Auges. Klin Monbl Augenheilkd 2010. [DOI: 10.1055/s-0030-1269996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Roth E, Chakir A, Ferhati A. Study of a Benzoylperoxy Radical in the Gas Phase: Ultraviolet Spectrum and C6H5C(O)O2 + HO2 Reaction between 295 and 357 K. J Phys Chem A 2010; 114:10367-79. [DOI: 10.1021/jp1021467] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Elliott S, Roth E, Highsmith J, Werner J, Webster M. Individual differences in chromatic contrast adaptation. J Vis 2010. [DOI: 10.1167/10.7.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Arató E, Kürthy M, Sínay L, Kasza G, Menyhei G, Hardi P, Masoud S, Ripp K, Szilágyi K, Takács I, Miklós Z, Bátor A, Lantos J, Kollár L, Roth E, Jancsó G. Effect of vitamin E on reperfusion injuries during reconstructive vascular operations on lower limbs. Clin Hemorheol Microcirc 2010; 44:125-36. [PMID: 20203367 DOI: 10.3233/ch-2010-1260] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The challenge against reperfusion injury and tissue oxidative stress, especially in vascular surgical interventions has an essential importance to reach the optimal clinical result. Numerous experimental attempts have proved the positive antioxidant effect of vitamin E in both chronic and acute phase models. In our study we monitored the effect of continuous preoperative treatment with vitamin E, on oxidative stress and tissue inflammation reactions developed after reconstructive operations. PATIENTS AND METHODS 32 patients have been involved in a randomized, prospective study, all suffering from AFS occlusion proved by angiography, and all undergone supragenual reconstruction. Duration of ischemia and amount of tissues under vascular clamping were almost the same in all patients. In the group treated with E-vitamin, we administered 1 x 200 mg of vitamin E p/o from the preoperative day till the 7th post operative day. Patients of the second group did not receive vitamin E. MATERIALS AND METHODS Peripheral blood samples were collected immediately before operation and at the end of the second reperfusion hour (early reperfusion period). Late reperfusion period has been monitored by analyzing blood samples taken at 24th hour and 7th day next to the operative ischemia. Among oxidative stress parameters, direct measurement of reactive oxygen intermediator (ROI) and determination of antioxidant state (GSH, Total-SH group, SOD) have been performed. Malondialdehyde was chosen as marker for lipidperoxidation. Inflammation reactions were monitored up on expression of adhesion molecules (CD11a and CD18). We also controlled the oscillation of myeloperoxidase (MPO) activity. RESULTS Our study has proved that preoperative (from the preoperative day till the 7th post operative day) administration of 200 mg vitamin E could reduce the level of oxidative stress developed after ischemic-reperfusion insult (lipidproxidation, antioxidant enzymes). According to our results, the prooxidant-antioxidant imbalance also diminished in the group with E-vitamin treatment. We proved that elective administration of vitamin E could decrease the WBC activity (MPO activity, free radicals production, expression of adhesion molecules) and its consequential local inflammation process, during early reperfusion.
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Highsmith J, Duncan C, O'Neil S, Roth E, Crognale M. Effects of selective attention on the chromatic VEP: Task-relevant stimuli. J Vis 2010. [DOI: 10.1167/8.6.989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Duncan C, Roth E, Mizokami Y, Crognale M. Contrast adaptation reveals higher-order color processing in the visual evoked potential. J Vis 2010. [DOI: 10.1167/9.8.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Bristol E, Roth E, Hunter J. 219 THE IMMEDIATE EFFECTS OF RHYTHMIC AUDITORY STIMULATION (RAS) ON GAIT PARAMETERS AND SYNCHRONIZATION OF ADULTS WITH SEVERE TRAUMATIC BRAIN INJURY. Parkinsonism Relat Disord 2010. [DOI: 10.1016/s1353-8020(10)70220-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Roth E. Ueber Mischinfectionen. Dtsch Med Wochenschr 2009. [DOI: 10.1055/s-0028-1140316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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